JPS5916628B2 - Locks with non-rotating flat keys - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lock using a non-rotating flat key.

The key used in the lock of the present invention has a key substrate formed into a flat plate shape,
To select the position where the key acts, a large number of vertical and horizontal lines virtually form a number of orthogonal coordinates on the key board, and the actuating part is selectively set on these arbitrary coordinates to lock the key. It is constructed so that it can be unlocked simply by inserting it into the keyhole.

Generally, the actuating portion is preferably formed by drilling a hole in the substrate.

Further, in the main lock using the above-mentioned key, a brake lever is installed between the locking lever and the operating lever that detects the unlocking operation portion to open and close the lock.

When a non-rotating flat key with an actuating part located at a position to unlock a predetermined lock is inserted into the keyhole of the lock, the actuating part of the key operates while selectively moving the detected actuating rod. The lever is actuated, thereby moving the brake rod that is braking the locking rod, thereby freeing the locking rod.

That is, the lock of the present invention is a lock that can be opened and closed by a non-rotating key that can be opened simply by inserting the key into the key hole of the lock without rotating the key.

Conventionally, there are many types of keys depending on the type of lock, but because the top surface or both sides of the key are formed into an uneven shape, the manufacturing process requires a large number of steps, time, and cost, and also when used. It is inconvenient to rotate the key to open the lock, and when the key is incorrectly inserted and rotated, the key often bends and the lock is damaged.

Furthermore, there is a limit to the variations in the unevenness of the key formed on the top face or both sides of the key, making it impossible to form various uneven surfaces. In order to avoid this, there were drawbacks such as the locking mechanism becoming complicated.

It is an object of the present invention to provide a lock and key which overcomes the drawbacks of the conventional keys and locks.

An example of implementing the present invention will be described below with reference to the drawings.

First, the non-rotating flat key used in the lock of the present invention is
In the figure, a large number of orthogonal coordinates T are virtually formed by a large number of vertical lines X and horizontal lines Y on a flat key 18 made of a substrate made of metal or synthetic resin material, and an operating part that operates the key, that is, The operating point for unlocking is set at an arbitrary coordinate T, and the operating hole 21,
21', 21 etc. are selectively perforated.

The key used in the lock of the present invention has an extremely simple manufacturing process compared to keys for conventional cylinder locks, reduces manufacturing costs and is highly suitable for mass production, and also allows the arrangement and selection of the actuating part of the key to open the lock to be arbitrary. can be varied and selected accurately.

Further, since the selection of the operating part of the key can be made more diverse and innumerable than in conventional cylinder lock keys, counterfeiting of keys and lock theft can be prevented to the maximum extent possible.

Next, the lock of the present invention is constructed as shown in FIGS. 2 to 6.

That is, an engagement groove 2 is formed at the upper end of the locking rod 1, and a lever 4 pivotally attached to a bundle 3 is engaged with the branch groove 2.

A concave groove 6 and a traction piece 5 are formed in the branch rod 1, and an auxiliary piece 8 suspended by a spring 7 is slidably provided on one side of the branch groove 6.

On the other hand, a projection 11 is provided on the brake rod 9 whose upper part can be freely inserted into the branch groove 6.
'.

11'' and a traction bullet piece 10 which can be freely engaged with the traction piece 5 are provided in a protruding manner.

Furthermore, a sliding groove 13 into which the lower part of the brake rod 9 is loosely fitted is bored in the center of the operating rod 12 which is movable in parallel with the locking rod 1, and the key 18 is provided at one end of the branch rod 12. A detecting portion for detecting the actuating portion is formed as a detecting protrusion 14 that can be inserted into the actuating hole 21.

15, 16, and 17 are locking rod 1, brake rod 9, and operating rod 1, respectively.
Reference numeral 19 is a locking plate of the locking rod 1, and reference numeral 20 is a housing as shown in FIGS. 3 to 6.

The effects of the present invention according to the above configuration will be explained as follows.

When the lock is in the closed state, as shown in FIG. 〃 is locked to the right upper surface end 12' of the sliding groove 13 of the operating rod 12, so that the locking rod 1
remains locked.

Next, when the non-rotating perforated flat plate key 18 shown in FIG. 1 is inserted into the keyhole of the lock, the operating hole 21 of the key 18 is drilled at a predetermined position for unlocking, as shown in FIG. ,21',21
When the detection protrusion 14 of the operating rod 12 selectively moves and slides and is detected by the 12 is pushed to the right to release the protrusion 11'' that was locked to the right upper end 12' of the sliding groove 13.

At the same time, the brake rod 9 is pulled by the spring 16, and the upper end of the branch rod 9 is pulled out of the groove 6 of the locking rod 1.

Therefore, the locking rod 1, which has been braked by the brake rod 9, can be reciprocated, and as the bundle 3 is rotated, the lever 4 can be reciprocated to open the lock.

In such an unlocking operation, the operating hole 21.21 of the key 18
', 21'', etc. have not yet detected the predetermined detection protrusion 14, that is, for example, the key 18 is inappropriate for unlocking the lock.
is used, therefore, the inappropriate operating hole 21 is connected to the detection protrusion 14
If it is pushed too far to the right, the operating rod 12 will move significantly to the right, so the protrusion 11' will be locked to the left upper surface end 121 of the sliding groove 13, and the inappropriate operating hole 21 will be locked to the detection protrusion 1.
If the condition is causing insufficient pressing of 4, press the protrusion 11" on the right side.
is locked with the right upper surface end 1γ, the projection 11'' is not released from the upper surface end 12' of the sliding groove 13, and therefore the brake rod 9 maintains the state in which the locking rod 1 is restrained.

Therefore, a large number of actuating rods 12 are provided, and the operating movement conditions are made different by the interaction between the actuating part of the key 18 and the detecting part of the actuating rod 12, and the sliding groove 13 of the actuating rod 12 and the protrusion 11 of the brake rod 9 are made different. By changing and adjusting the locking or releasing conditions with ', 11'', it is possible to obtain sophisticated locking mechanisms that can vary in countless ways.

When the lock of the present invention is to be closed, the key 18 is pulled out from the keyhole of the lock and the bundle 3 is rotated. As shown in FIG. The locking rod 1 is moved to the left while being engaged with the engaging groove 2 of the locking rod 1.

At the same time, the traction piece 5 formed on the locking rod 1 pulls the double bullet piece 10 of the brake rod 9, thereby raising the brake rod 9 and causing the protrusions 11', 11'' of the brake rod 9 to slide on the operating rod 2. Groove 13
position above.

On the other hand, the operating rod 12 is pushed to the left by the spring 17, causing the right protrusion 11'' of the brake rod 9 to engage with the upper end 1γ of the sliding groove 13 of the operating rod 12.

At the same time, the upper end of the brake rod 9 pushes up the auxiliary piece 8 suspended by the spring 1 on the side of the groove 6.

At this time, the locking rod 1 is in the backward left position, but the bundle 3
When the locking rod 1 is returned to its original position, the locking rod 1 is pushed to the right by the biasing force of the spring 15, and as shown in FIG. It is inserted into the groove 6 and is thus in a locked state.

In carrying out the present invention, a large number of actuating rods 12 interlocked with the brake rod 9 are provided as shown by the two-dot chain line in FIGS. 3 and 4, thereby forming a large number of detecting parts for the actuating part of the key, thereby preventing lock theft. This can more effectively prevent
By arbitrarily changing the length, etc., it is possible to implement the method more effectively and in a variety of ways.

Moreover, the key of the present invention is that the actuating part can be formed as a blind hole or a groove instead of the through hole and actuated, or can be actuated with various changes by forming an irregular uneven surface on the coordinates. You can also do it.

Since the present invention is constructed in an upwardly slanted manner, the lock can be unlocked simply by inserting the key into the drilled hole of the lock, and there is no need for the conventional method of inserting the key into the drilled hole of the lock and rotating the unlocking operation. It is easy to use and has the effect of preventing key breakage and lock failure, and when closing the lock, the key can be pulled out from the drilled hole to accurately complete the locking operation.

Furthermore, the present invention has a simple structure, allows for easy mass production of sophisticated and various locks, and has a practical advantageous effect.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention, in which Fig. 1 is a perspective view of a non-rotating perforated flat key, Fig. 2 is an exploded perspective view, Fig. 3 is a front view of the locked state, and Fig. 4. is a front view showing the unlockable state, and FIGS. 5 and 6 are front views showing the locking process. Explanation of the symbols of the main parts, 1: Locking rod, 2: Engagement groove, 4 Nilever, 5: Traction piece, 6: Concave groove, 7: Spring, 8: Auxiliary piece,
9: Braking rod, 10: Traction bullet, 11'. 11〃: Protrusion, 12: Operating rod, 13: Sliding groove, 14: Detection section (protrusion), 2L21', 21'': Operating section (hole).

Claims (1)

[Claims] 1. A lock that opens and closes using a non-rotating flat key with an appropriate number of operating parts formed at predetermined positions, which is movable between a closed position and an unlocked position and is always biased to the closed position. A locking rod with a cage groove and a traction piece formed therein;
An auxiliary piece is movably installed along the groove, and is movable between an advanced position inserted into the groove and a retreated position retracted from the groove, and forms an appropriate number of protrusions. and a brake rod formed with a traction bullet piece that can be freely engaged with the traction piece;
an actuating rod having a sliding groove formed with an appropriate number of end portions into which the brake rod is loosely fitted and can be freely engaged with the protrusion, and a detecting portion for detecting an actuating portion of the key; When the key is inserted and the detecting section of the operating lever detects an appropriate number of operating sections formed at predetermined positions of the key, the braking lever is moved to the retracted position and the locking lever is moved to the unlocked position. A lock using a non-rotating flat key, characterized in that it can be moved to.